FIELD AND BACKGROUND OF THE INVENTION
The subject technology relates to small solar-powered lighting devices for portable or landscape use.
SUMMARY OF THE INVENTION
According to an aspect of the subject technology, a portable or landscape lighting fixture or luminaire consists of a self-contained light source, for example a disk light body, including one or more light-emitting diodes (LEDs), solar cells for collecting solar energy to power the LEDs, a rechargeable battery for storing energy collected by the solar cells, and driver circuitry to power the LEDs with the stored energy. The disk light body is mounted in a frame by means which permit the disk light to tilt or rotate within the frame, enabling the user to tilt or swivel the disk light to face in different directions. This permits the user to tilt or swivel the disk light to harvest solar energy and cast illumination in different directions while the frame remains in place.
For use as a landscape light, a mounting spike is attached to the frame, for affixing the lighting fixture to the ground. The mounting spike is preferably removable from the frame and consists of two interlocking blades. Each blade has integrally formed attachment arms for attaching the blade to the frame. The attachment arms are upswept, curved and shaped to create a clearance or gap between the spike and the ground on the one hand, and the disk light body on the other hand for sufficient clearance that the disk light may be tilted or swiveled within the frame, while the frame remains attached to the ground by means of the spike.
The various features of novelty which characterize the subject technology are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the subject technology, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the subject technology are illustrated.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a view of the top of a disk light according to a non-limiting embodiment of the subject technology.
FIG. 2 is a view of the bottom of a disk light according to a non-limiting embodiment of the subject technology.
FIG. 3 is a view of the side of a disk light, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
FIG. 4 is a high-angle view of the side of a disk light, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
FIG. 5 is a view of the side of a disk light, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
FIG. 6 is a high-angle view of the side of a disk light, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
FIG. 7 is a high-angle view of the frame of a disk light according to a non-limiting embodiment of the subject technology.
FIG. 8 is a high-angle view of a disk light with the frame disassembled according to a non-limiting embodiment of the subject technology.
FIG. 9 is a high-angle view of a disk light with the frame disassembled according to a non-limiting embodiment of the subject technology.
FIG. 10 is a top view of a disk body disassembly according to a non-limiting embodiment of the subject technology.
FIG. 11 is a view of the blade components of a landscape spike according to a non-limiting embodiment of the subject technology.
FIG. 12 is a view of a landscape spike according to a non-limiting embodiment of the subject technology.
FIG. 13 is a high-angle view of a side view of a disk light with a landscape spike installed according to a non-limiting embodiment of the subject technology.
FIG. 14 is a view of a side view of a disk light with a landscape spike installed according to a non-limiting embodiment of the subject technology.
FIG. 15 is a view of a side view of a disk light with a landscape spike installed, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
FIG. 16 is a view of a side view of a disk light with a landscape spike installed, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
FIG. 17 is a view of a side view of a disk light with a landscape spike installed, with the disk body tilted with respect to the frame, according to a non-limiting embodiment of the subject technology.
DETAILED DESCRIPTION OF THE INVENTION
According to a non-limiting aspect of the subject technology, as shown in FIGS. 1-10 and 13-17, a disk light 1 comprises a disk body 5 pivotably mounted in a frame 2. Disk body 5 serves as a housing and carrier for solar cells 11 for harvesting solar energy and detecting ambient light; rechargeable battery 12 for storing the harvested solar energy; high-power COB or surface mount LEDs 13 (only one is numbered), powerable by battery 12 for emitting light; a two-position (ON/OFF) latching pushbutton switch 14 for enabling and disabling electrical power delivery to LEDs 14; and wiring and driver electronics (not numbered) for driving and controlling the solar cells 11, battery 12, and LEDs 13. Disk body 5 may have 4, 6, 8, or 12 LEDs. The switch, wiring and driver electronics are configured to deliver electrical power to the LEDs from the battery (thereby turning the LEDs on) when the switch is in the ON position and the solar cells are not detecting ambient light; and to cut off power to the LEDs (thereby turning the LEDs off) when the switch is in the OFF position or the solar cells are detecting ambient light. The solar cells 11, battery 12, LEDs 13, switch 14, and wiring and driver electronics are as known to those of skill in the art.
As best seen in FIG. 10, disk body 5 consists of lower shell 15 and upper shell 16, both made of metal or plastic which may be injection-molded. Lower shell 15 is attached to upper shell 16, for example, by screws, to form a disk-shaped housing. In a non-limiting embodiment, battery 12 and switch 14 are disposed on a lower surface of upper shell 16; solar cells 11, LEDs 13, and the driver electronics are disposed on an upper surface of upper shell 16 and are encapsulated with a transparent polymer layer. To enable use of switch 14, lower shell 15 carries a flexible boot 17 in a hole through lower shell 15 to cover switch 14. A polymer or elastomer O-ring seal 37 seals and weatherproofs any gap around the circumference when lower shell 15 is assembled to upper shell 16.
Disk body 5 has pegs 18 extending therefrom, for supporting disk body 5 tiltably and rotatably in frame 2. Pegs 18 are disposed to be co-linear to form a stable axis of rotation for disk body 5 in frame 2. Pegs 18 may be integrally formed with and extend from either lower shell 15 or upper shell 16. In the non-limiting embodiment of the Figures, pegs 18 are integrally formed with and extend from lower shell 15.
As best seen in FIGS. 7, 8 and 9, frame 2 comprises frame top 3 and frame bottom 4 which is attached to frame top 3 by screws passing through holes in frame bottom 4 and affixed into holes in frame top 3. Frame 2 defines a circular opening 21 for receiving disk body 5. Frame bottom 4 comprises an inner rim 9. Likewise, frame top 5 comprises an inner rim 10. Inner rims 9, 10 each have, respectively, pairs of notches 19, 20. The notches are arranged co-linearly on the respective inner rims. Frame top 3 and frame bottom 4 are assembled to form frame 2 such that respective inner rims 9, 10 meet to form circular opening 21. Likewise, the pairs of the notches 19, 20 meet to form through-going holes 22 in frame 2 for receiving, holding and supporting pegs 18 of disk body 5, in a rotatable and tiltable configuration. Preferably, circular opening 21 is sized and shaped with respect to disk body 5 to allow for a clearance gap about the circumference of disk body 5, which permits disk body 5 to tilt and rotate about pegs 18. In a non-limiting embodiment, the clearance gap is sufficient to permit disk body 5 to perform complete rotations without colliding with or contacting frame 2.
As best seen in FIG. 2, frame 2 has recesses 23 in frame bottom 4 to permit removable attachment of a landscape spike to disk light 1. As best seen in FIGS. 11 and 12, in the non-limiting embodiment shown, landscape spike 30 is composed of long blade 31 and short blade 32, which are preferably made of metal or plastic. Blades 31, 32 have, respectively, slots 33, 34 for assembling and interlocking the blades together to form spike 30, as shown. Blades 31, 32 have integrally formed pegs 35 for insertion into recesses 23 to removably attach spike 30 to frame 2. Pegs 35 are integrally connected to blades 31, 32 by curved, upsweeping arms 36. Preferably, blades 31, 32 taper to a point on the end opposite the arms 36. Preferably, pegs 35 extend beyond arms 36 as shown, to provide additional points of contact with the ground when spike 30 is inserted into the ground.
As best seen in FIGS. 14-17, the curved and/or upsweeping shape of arms 36 opens up a clearance gap 40 between spike 30 and disk light 1, so that disk body 5 is given room to tilt within frame 2. According to a non-limiting embodiment, disk body 5 may be tilted up to 40 degrees from horizontal until it contacts an arm 36. In other non-limiting embodiments, disk body 5 may be tilted up to 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, or 85 degrees from horizontal (0 degrees relative to the frame) until it contacts an arm 36. In other non-limiting embodiments, disk body 5 may perform complete rotations without contacting an arm 36. The permitted degree of tilt will depend on the geometry of arms 36, frame 2 and disk body 5.
According to a non-limiting embodiment of the subject technology, a landscape light kit comprises disk light 1, long blade 31 and short blade 32. The end-user assembles blades 31, 32 to form spike 30, and assembles spike 30 to disk light 1, to form a finished tiltable landscape disk light assembly.
It should be understood that the ornamental appearance of the tiltable disk lights and components thereof as shown in the Figures are within the scope of the subject technology.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles. It will also be understood that the present invention includes any combination of the features and elements disclosed herein and any combination of equivalent features. The exemplary embodiments shown herein are presented for the purposes of illustration only and are not meant to limit the scope of the invention.
Patent Application
20190128486
